113122331121 has 4 divisors (see below), whose sum is σ = 150829774832. Its totient is φ = 75414887412.

The previous prime is 113122331093. The next prime is 113122331143. The reversal of 113122331121 is 121133221311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 113122331121 - 2²¹ = 113120233969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113122371121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18853721851 + ... + 18853721856.

It is an arithmetic number, because the mean of its divisors is an integer number (37707443708).

Almost surely, 2^113122331121 is an apocalyptic number.

It is an amenable number.

113122331121 is a deficient number, since it is larger than the sum of its proper divisors (37707443711).

113122331121 is an equidigital number, since it uses as much as digits as its factorization.

113122331121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37707443710.

The product of its digits is 216, while the sum is 21.

Adding to 113122331121 its reverse (121133221311), we get a palindrome (234255552432).

The spelling of 113122331121 in words is "one hundred thirteen billion, one hundred twenty-two million, three hundred thirty-one thousand, one hundred twenty-one".